The class weren't laughing with me, they were laughing at me and there is no lonelier place for a comedian or teacher to be in. The lesson was over and everyone knew it. I looked down and realised that my flies were undone. Welcome to teaching.

Welcome to the reality of what it's really like to be a teacher - the pure, unvarnished truth of what it means to stand in front of a group of thirty kids and try and get them to do some work. It's not the inspirational vision you see in government ads, it's breaking up fights between warring East End grandmas, six-year-olds streaking naked through exam rooms or prepubescent sociopaths annihilating lessons week after week.

In brutal, hilarious and gory detail, teacher-turned-comedian Francis Foster lifts the lids on the indignities and humiliations he experienced as a supply teacher in some of the most atrocious schools around the country. But so much more than a teacher's memoir, Classroom Confidential shines a light on the problems in the UK education system in uncompromising fashion, exposing how the most vulnerable children in society are being failed. And if you're not listening? Well, it's not only your own time you're wasting.